EP 4026429 A1 20220713 - A HEAT EXCHANGER WITH INTEGRATED TESTING SYSTEM
Title (en)
A HEAT EXCHANGER WITH INTEGRATED TESTING SYSTEM
Title (de)
WÄRMETAUSCHER MIT INTEGRIERTEM PRÜFSYSTEM
Title (fr)
ÉCHANGEUR DE CHALEUR DOTÉ D'UN SYSTÈME DE TEST INTÉGRÉ
Publication
Application
Priority
- IE S20180009 A 20180116
- EP 19700647 A 20190108
- EP 2019050320 W 20190108
Abstract (en)
A heat exchanger apparatus (1) has a heating stage (2) with a product side and a hot water side and a cooling stage (5) with a product side and a coolant side, and also regeneration stages (3, 4) with treated and un-treated product sides. There are valves (V2-V12) including a cooling stage outlet valve (V6), and pressure sensors (PT1, PT2, PT3, PT4), and pumps (P1, P2, P3) for pumping process liquid through the product sides. A PLC controller is programmed to operate the pumps with outlet valves closed to pressurise the product sides of the stages at a pressure dynamically maintained by control of the pumps in response to sensed pressure. The valves are controlled to firstly vent the heating and cooling sides of the heating and cooling stages with the product sides pressurised, and then in a second phase to vent the downstream (treated) product sides of regeneration stages (3, 4). Also, an in-line holding time test is performed by monitoring time for step rises in temperature to reach a temperature sensor (TT1B) and the outlet end of a holding tube (22).
IPC 8 full level
A23C 3/033 (2006.01); A23L 3/00 (2006.01); A23L 3/18 (2006.01); G01M 3/32 (2006.01)
CPC (source: EP US)
A01J 11/16 (2013.01 - EP); A23C 3/033 (2013.01 - EP US); A23C 3/0332 (2013.01 - US); A23C 3/0337 (2013.01 - US); A23L 2/46 (2013.01 - EP); A23L 3/003 (2013.01 - EP US); A23L 3/20 (2013.01 - EP US); A23L 3/22 (2013.01 - US); F28D 9/00 (2013.01 - US); G01M 3/2815 (2013.01 - US); G01M 3/3227 (2013.01 - EP); F28D 9/00 (2013.01 - EP); F28F 2200/00 (2013.01 - EP US); F28F 2265/16 (2013.01 - EP US); G01M 3/32 (2013.01 - US)
Citation (applicant)
- EP 2438420 A1 20120411 - UNISON ENGINEERING SERVICES LTD [IE]
- DE 4408073 A1 19941208 - FELS WINFRIED DIPL ING [DE]
- DE 19534855 C1 19970612 - SCHEELE WOLFGANG [DE]
- US 2004129061 A1 20040708 - RABELLE GERARD [FR]
- US 2011027441 A1 20110203 - DEANE GEOFFREY F [US], et al
Citation (search report)
- [Y] US 6136362 A 20001024 - ASHTON ROGER J [US]
- [Y] US 2003034146 A1 20030220 - KAUFMAN ISRAEL [IL]
- [A] US 2017261398 A1 20170914 - BOWLING MICHAEL KEITH [GB]
- [A] US 5360055 A 19941101 - HUP GERHARD [NL], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019141538 A1 20190725; EP 3740078 A1 20201125; EP 3740078 B1 20220406; EP 4026429 A1 20220713; US 11885572 B2 20240130; US 2020337322 A1 20201029
DOCDB simple family (application)
EP 2019050320 W 20190108; EP 19700647 A 20190108; EP 22159535 A 20190108; US 201916960436 A 20190108